In the time before baby, the analogue microwave was refreshing, now it's a nuisance.
It wasn't a huge deal when it happened to me because I wasn't very distracted and I was making tea so it just sat there and boiled for a couple of minutes until I checked in. Under slightly different circumstances it could have been much worse.
Not sure about your microwave, but mine (ca. 1996 Panasonic) has an analog knob (actually, that's the only control) for time.
If I need less than a minute, I turn the knob past 1 minute, then turn it back where I want it. That pretty much always works for me.
Perhaps it might for you too.
I have hated every microwave since.
https://www.ebay.com/i/203083047312
A closeup picture of the dial:
https://i.ebayimg.com/images/g/aogAAOSwFmZfPquw/s-l1600.jpg
The log-factor wasn't as severe as I had remembered, but the 0-1m angle is about the same as the 20-25m angle. It was still pretty easy to get 15s, 30s, etc. I'm sure you could do a lot better with modern digital electronics.